The most important numerically are the Dyaks, the Dusuns and Muruts of the interior, the Malays, among whom must be counted such Malayan tribes as the Bajaus, Ilanuns, &c., the Bugis, who were originally immigrants from Celebes, and the Chinese.
The seashore and the country bordering closely on the west coast are inhabited chiefly by Dusuns, by Kadayans, by Bajaus and Ilanuns - both Malayan tribes - and by Brunei Malays.
The east coast is very sparsely populated and its inhabitants are mostly Bajaus and settlers from the neighbouring Sulu archipelago.
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